Ouachita Valley Railway 2-8-0 "Consolidation" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 13708)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 36, p. 115. See also the Tap Line Case summaries at [] and the Arkansas Tap Line's web page at http://peace.saumag.edu/swark/articles/ahq/arkansas/taplines/taplines339.html, last accessed 10 January 2012. Works number was 34994 in July 1910.

Freeman-Smith Lumber Company bought this little Ten-wheeler for its Arkansas operation, which included a 28-mile main line from Millville, where it linked to the Cotton Belt, southeast to Stark, where it met the Rock Island. The ICC's Tap Line Case summary notes that only 430 tons of freight in 1912 were not directly connected to the lumber company's logging operations. Morover, the train rode on 30-lb (15-kg/metre) rail.

The Arkansas Tap Line summary notes that the ICC nevertheless pronounced the OVRwy a common carrier and noted critically that the rate charged to the Rock Island was substantially more favorable than the one made available to the Cotton Belt.

The OV Rwy responded to the decision by restructuring itself as an industrial road.

The Ouachita Valley's parent would later sell the 5 to the Ogemaw Lumber Company in Arkansas in 1920. OLC operated the 5 until at least 1934.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID13708
RailroadOuachita Valley Railway
Number in Class1
Road Numbers5
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.50 / 3.81
Engine Wheelbase (ft / m)19.33 / 5.89
Ratio of driving wheelbase to overall engine wheebase 0.65
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)75,000 / 34,019
Engine Weight (lbs / kg)85,000 / 38,555
Tender Loaded Weight (lbs / kg)70,000 / 31,752
Total Engine and Tender Weight (lbs / kg)155,000 / 70,307
Tender Water Capacity (gals / ML)3500 / 13.26
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)6 / 5.50
Minimum weight of rail (calculated) (lb/yd / kg/m)31 / 15.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)175 / 12.10
High Pressure Cylinders (dia x stroke) (in / mm)16" x 22" / 406x559
Tractive Effort (lbs / kg)19,040 / 8636.41
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.94
Heating Ability
Firebox Area (sq ft / m2)92 / 8.55
Grate Area (sq ft / m2)16.60 / 1.54
Evaporative Heating Surface (sq ft / m2)972 / 90.30
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)972 / 90.30
Evaporative Heating Surface/Cylinder Volume189.86
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2905
Same as above plus superheater percentage2905
Same as above but substitute firebox area for grate area16,100
Power L13590
Power MT422.11

All material Copyright © SteamLocomotive.com
Wes Barris